protected async void LoadCourses()
{
LoadingCourses = true;
bool useAll = App.isUsingAllCourses();
//IsBusy = true;
// Get the courses!
L2PCourseInfoSetData courses;
if (useAll)
{
courses = await api.RESTCalls.L2PViewAllCourseInfoAsync();
}
else
{
string semester;
if (DateTime.Now.Month < 4)
{
// winter semester but already in new year -> ws+last year
semester = "ws" + DateTime.Now.AddYears(-1).Year.ToString().Substring(2);
}
else if (DateTime.Now.Month > 9)
{
// winter semester, still in this year
semester = "ws" + DateTime.Now.Year.ToString().Substring(2);
}
else
{
// summer semester
semester = "ss" + DateTime.Now.Year.ToString().Substring(2);
}
courses = await api.RESTCalls.L2PViewAllCourseIfoBySemesterAsync(semester);
}
// TODO Workaround (should be moved to Manager)
if (courses == null)
{
await api.AuthenticationManager.GenerateAccessTokenFromRefreshTokenAsync();
courses = await api.RESTCalls.L2PViewAllCourseInfoAsync();
return;
}
if (courses.dataset == null)
{
ErrorMessage = courses.errorDescription;
return;
}
MenuPage.ClearCoursesMenu();
foreach (L2PCourseInfoData l2pcourse in courses.dataset)
{
MenuPage.AddCourseToMenu(l2pcourse.uniqueid, l2pcourse.courseTitle);
}
LoadingCourses = false;
Ready = true;
//IsBusy = false;
}
private async Task RefreshNavbar(bool useAll)
{
IsBusy = true;
if (api.AuthenticationManager.getState() != api.AuthenticationManager.AuthenticationState.ACTIVE)
{
Device.BeginInvokeOnMainThread(() => DisplayAlert("Authorization needed", "Please authorize the App first", "OK"));
IsBusy = false;
return;
}
//var c = new System.Net.Http.HttpClient();
// Get the courses!
L2PCourseInfoSetData courses;
if (useAll)
{
courses = await api.RESTCalls.L2PViewAllCourseInfoAsync();
}
else
{
string semester;
if (DateTime.Now.Month < 4)
{
// winter semester but already in new year -> ws+last year
semester = "ws" + DateTime.Now.AddYears(-1).Year.ToString().Substring(2);
}
else if (DateTime.Now.Month > 9)
{
// winter semester, still in this year
semester = "ws" + DateTime.Now.Year.ToString().Substring(2);
}
else
{
// summer semester
semester = "ss" + DateTime.Now.Year.ToString().Substring(2);
}
courses = await api.RESTCalls.L2PViewAllCourseIfoBySemesterAsync(semester);
}
// Workaround (should be moved to Manager)
if (courses == null)
{
await api.AuthenticationManager.GenerateAccessTokenFromRefreshTokenAsync();
courses = await api.RESTCalls.L2PViewAllCourseInfoAsync();
}
if (courses.dataset == null)
{
Device.BeginInvokeOnMainThread(() => DisplayAlert("Error", "An error occured: " + courses.errorDescription, "OK"));
IsBusy = false;
return;
}
MenuPage.ClearCoursesMenu();
foreach (L2PCourseInfoData l2pcourse in courses.dataset)
{
MenuPage.AddCourseToMenu(l2pcourse.uniqueid, l2pcourse.courseTitle);
}
IsBusy = false;
}